For DSYM files, don't load any segments except __DWARF

Author: Seva Alekseyev

filebytes/mach_o.py

@@ -32,6 +32,19 @@
 from binascii import hexlify
 ############# MachO General ######################
 
+class MH(Enum):
+ OBJECT = 0x1
+ EXECUTE = 0x2
+ FVMLIB = 0x3
+ CORE = 0x4
+ PRELOAD = 0x5
+ DYLIB = 0x6
+ DYLINKER = 0x7
+ BUNDLE = 0x8
+ DYLIB_STUB = 0x9
+ DSYM = 0xa
+ KEXT_BUNDLE = 0xb
+
 class VM_PROT(Enum):
  READ = 0x1
  WRITE = 0x2
@@ -519,8 +532,13 @@ def __parseSections(self, data, segment, offset):
  else:
  offset += sizeof(self._classes.Section)
 
- raw = (c_ubyte * sec.size).from_buffer(data, sec.offset)
- sections.append(SectionData(header=sec, name=sec.sectname.decode('ASCII'),bytes=bytearray(raw), raw=raw))
+ if self.machHeader.header.filetype != MH.DSYM or segment.segname == "__DWARF":
+ raw = bytearray((c_ubyte * sec.size).from_buffer(data, sec.offset))
+ bytes = bytearray(raw)
+ else:
+ raw = None
+ bytes = None
+ sections.append(SectionData(header=sec, name=sec.sectname.decode('ASCII'), bytes=bytes, raw=raw))
 
  return sections